Value Collection 3740MST Truss Head Machine Screw 3/8-16

Product Description

The VALUE COLLECTION 3740MST is a truss head machine screw designed for general-purpose fastening in metal, plastic, and wood assemblies. It features a slotted drive and a low-profile, wide-bearing truss head that distributes clamping load across a larger surface area than a standard pan or round head. The screw is manufactured from steel with a zinc finish for basic corrosion resistance and conforms to ASME B18.6.3 and SAE J82 standards. Thread size is 3/8-16 (coarse thread) with a length under head of 2.5 inches. This fastener is installed by maintenance technicians, millwrights, electricians, and HVAC service professionals in light structural and equipment-mounting applications.

This screw is suited for through-bolting panels, brackets, electrical enclosures, equipment frames, and ductwork supports where a wide bearing surface is needed to prevent pull-through. The coarse 3/8-16 thread provides reliable thread engagement in tapped steel and aluminum components. It is commonly found in commercial HVAC unit assembly, electrical panel mounting, and general industrial maintenance scenarios.

Key Features

• Truss head profile provides a wide, low-profile bearing surface to distribute clamping load
• 3/8-16 coarse thread for strong engagement in standard tapped holes
• 2.5-inch length under head accommodates thicker stack-ups and panel assemblies
• Zinc finish offers basic corrosion resistance for indoor and light-duty applications
• Conforms to ASME B18.6.3 and SAE J82 fastener standards
• Steel construction with Material Grade J82 for consistent mechanical properties

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 3/8-16 coarse-thread truss head slotted fastener per ASME B18.6.3.

Installation Notes

Install with a flat-blade screwdriver sized to the slotted drive to avoid cam-out and head damage. Ensure the mating tapped hole or nut is rated for 3/8-16 coarse thread before installation. De-energize any electrical equipment before fastening enclosures or panels per applicable NEC guidelines. Do not over-torque; thread stripping is a risk in softer base materials such as aluminum or plastic.